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Ref T270, interpolator optimization by passing aircraft number

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Rational: Except for FS9 we interpolate all aircraft in one loop at the same time. This can cause that some steps are always done at the same time for all aircraft of that loop. By passing the number we can more equally distribute such tasks, avoiding peaks.
This commit is contained in:
Klaus Basan
2018-06-01 18:02:11 +02:00
parent d39978a1d0
commit 181ed36f3d
13 changed files with 55 additions and 37 deletions
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37
src/blackmisc/simulation/interpolator.cpp
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@@ -142,18 +142,19 @@ namespace BlackMisc
}
template<typename Derived>
CInterpolationResult CInterpolator<Derived>::getInterpolation(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup)
CInterpolationResult CInterpolator<Derived>::getInterpolation(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup, int aircraftNumber)
{
CInterpolationResult result;
do
{
// make sure we can also interpolate parts only (needed in unit tests)
const bool init = this->initIniterpolationStepData(currentTimeSinceEpoc, setup);
if (aircraftNumber < 0) { aircraftNumber = 0; }
const bool init = this->initIniterpolationStepData(currentTimeSinceEpoc, setup, aircraftNumber);
if (!m_unitTest && !init) { break; } // failure in real scenarios, unit tests move on
Q_ASSERT_X(m_currentTimeMsSinceEpoch > 0, Q_FUNC_INFO, "No valid timestamp, interpolator initialized?");
const CAircraftSituation interpolatedSituation = this->getInterpolatedSituation();
const CAircraftParts interpolatedParts = this->getInterpolatedOrGuessedParts();
const CAircraftParts interpolatedParts = this->getInterpolatedOrGuessedParts(aircraftNumber);
result.setValues(interpolatedSituation, interpolatedParts);
}
@@ -168,12 +169,12 @@ namespace BlackMisc
{
if (m_currentSituations.isEmpty())
{
m_lastInterpolation = CAircraftSituation::null();
m_lastSituation = CAircraftSituation::null();
return CAircraftSituation::null();
}
const CAircraftSituation latest = m_currentSituations.front();
CAircraftSituation currentSituation = m_lastInterpolation.isNull() ? latest : m_lastInterpolation;
CAircraftSituation currentSituation = m_lastSituation.isNull() ? latest : m_lastSituation;
if (currentSituation.getCallsign() != m_callsign)
{
BLACK_VERIFY_X(false, Q_FUNC_INFO, "Wrong callsign");
@@ -246,7 +247,7 @@ namespace BlackMisc
}
// bye
m_lastInterpolation = currentSituation;
m_lastSituation = currentSituation;
return currentSituation;
}
@@ -286,8 +287,14 @@ namespace BlackMisc
}
template<typename Derived>
CAircraftParts CInterpolator<Derived>::getInterpolatedOrGuessedParts()
CAircraftParts CInterpolator<Derived>::getInterpolatedOrGuessedParts(int aircraftNumber)
{
Q_ASSERT_X(m_partsToSituationInterpolationRatio >= 1 && m_partsToSituationInterpolationRatio < 11, Q_FUNC_INFO, "Wrong ratio");
if (!m_unitTest && !m_lastParts.isNull() && ((m_interpolatedSituationsCounter + aircraftNumber) % m_partsToSituationInterpolationRatio) == 0)
{
return m_lastParts;
}
CAircraftParts parts;
if (m_currentSetup.isAircraftPartsEnabled())
{
@@ -300,9 +307,11 @@ namespace BlackMisc
if (!m_currentPartsStatus.isSupportingParts())
{
// check if model has been thru model matching
parts.guessParts(m_lastInterpolation, m_currentSituationChange, m_model);
parts.guessParts(m_lastSituation, m_currentSituationChange, m_model);
this->logParts(parts, 0, false);
}
m_lastParts = parts;
return parts;
}
@@ -335,13 +344,13 @@ namespace BlackMisc
QStringLiteral(" parts: ") %
QString::number(this->remoteAircraftPartsCount(m_callsign)) %
QStringLiteral(" 1st interpolation: ") %
boolToYesNo(m_lastInterpolation.isNull());
boolToYesNo(m_lastSituation.isNull());
}
template<typename Derived>
void CInterpolator<Derived>::resetLastInterpolation()
{
m_lastInterpolation.setNull();
m_lastSituation.setNull();
}
template<typename Derived>
@@ -361,12 +370,12 @@ namespace BlackMisc
}
template<typename Derived>
bool CInterpolator<Derived>::initIniterpolationStepData(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup)
bool CInterpolator<Derived>::initIniterpolationStepData(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup, int aircraftNumber)
{
Q_ASSERT_X(!m_callsign.isEmpty(), Q_FUNC_INFO, "Missing callsign");
const qint64 lastModifed = this->situationsLastModified(m_callsign);
const bool slowUpdateStep = ((m_interpolatedSituationsCounter % 25) == 0); // flag when parts are updated, which need not to be updated every time
const bool slowUpdateStep = (((m_interpolatedSituationsCounter + aircraftNumber) % 25) == 0); // flag when parts are updated, which need not to be updated every time
const bool changedSetup = m_currentSetup != setup;
const bool changedSituations = lastModifed > m_situationsLastModified;
@@ -392,7 +401,7 @@ namespace BlackMisc
if (m_currentSituations.isEmpty())
{
const bool inRange = this->isAircraftInRange(m_callsign);
m_lastInterpolation = CAircraftSituation::null(); // no interpolation possible for that step
m_lastSituation = CAircraftSituation::null(); // no interpolation possible for that step
m_currentInterpolationStatus.setExtraInfo(inRange ?
QString("No situations, but remote aircraft '%1'").arg(m_callsign.asString()) :
QString("Unknown remote aircraft: '%1'").arg(m_callsign.asString()));
@@ -400,7 +409,7 @@ namespace BlackMisc
else
{
success = true;
m_interpolatedSituationsCounter++;
m_interpolatedSituationsCounter++; // counter updated in initIniterpolationStepData
// with the latest updates of T243 the order and the offsets are supposed to be correct
// so even mixing fast/slow updates shall work

17
src/blackmisc/simulation/interpolator.h
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@@ -167,10 +167,10 @@ namespace BlackMisc
static const CLogCategoryList &getLogCategories();
//! Latest interpolation result
const Aviation::CAircraftSituation &getLastInterpolatedSituation() const { return m_lastInterpolation; }
const Aviation::CAircraftSituation &getLastInterpolatedSituation() const { return m_lastSituation; }
//! Parts and situation interpolated
CInterpolationResult getInterpolation(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup);
CInterpolationResult getInterpolation(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup, int aircraftNumber = -1);
//! Takes input between 0 and 1 and returns output between 0 and 1 smoothed with an S-shaped curve.
//!
@@ -214,7 +214,10 @@ namespace BlackMisc
CInterpolationLogger *logger);
//! Inits all data for this current interpolation step
bool initIniterpolationStepData(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup);
//! \param currentTimeSinceEpoc
//! \param setup
//! \param aircraftNumber passing the aircraft number allows to equally distribute among the steps and not to do it always together for all aircraft
bool initIniterpolationStepData(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup, int aircraftNumber);
//! Current interpolated situation
Aviation::CAircraftSituation getInterpolatedSituation();
@@ -223,7 +226,7 @@ namespace BlackMisc
Aviation::CAircraftParts getInterpolatedParts();
//! Interpolated parts, if not available guessed parts
Aviation::CAircraftParts getInterpolatedOrGuessedParts();
Aviation::CAircraftParts getInterpolatedOrGuessedParts(int aircraftNumber);
//! Center of gravity
const PhysicalQuantities::CLength &getModelCG() const { return m_model.getCG(); }
@@ -245,12 +248,14 @@ namespace BlackMisc
CInterpolationAndRenderingSetupPerCallsign m_currentSetup; //!< used setup
CInterpolationStatus m_currentInterpolationStatus; //!< this step's status
CPartsStatus m_currentPartsStatus; //!< this step's status
Aviation::CAircraftSituation m_lastInterpolation { Aviation::CAircraftSituation::null() }; //!< latest interpolation
int m_partsToSituationInterpolationRatio = 2; //!< ratio between parts and situation interpolation, 1..always, 2..every 2nd situation
Aviation::CAircraftSituation m_lastSituation { Aviation::CAircraftSituation::null() }; //!< latest interpolation
Aviation::CAircraftParts m_lastParts { Aviation::CAircraftParts::null() }; //!< latest parts
PhysicalQuantities::CLength m_currentSceneryOffset { PhysicalQuantities::CLength::null() }; //!< calculated scenery offset if any
qint64 m_situationsLastModified { -1 }; //!< when situations were last modified
qint64 m_situationsLastModifiedUsed { -1 }; //!< interpolant based on situations last updated
int m_interpolatedSituationsCounter { 0 }; //!< counter for each interpolated situations: statistics, every n-th interpolation ....
int m_interpolatedSituationsCounter { 0 }; //!< counter for each interpolated situations: used for statistics, every n-th interpolation ....
bool m_unitTest = false; //!< mark as unit test

6
src/blackmisc/simulation/interpolatormulti.cpp
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@@ -22,12 +22,12 @@ namespace BlackMisc
m_linear(callsign, p1, p2, p3, logger)
{}
CInterpolationResult CInterpolatorMulti::getInterpolation(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup)
CInterpolationResult CInterpolatorMulti::getInterpolation(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup, int aircraftNumber)
{
switch (setup.getInterpolatorMode())
{
case CInterpolationAndRenderingSetupBase::Linear: return m_linear.getInterpolation(currentTimeSinceEpoc, setup);
case CInterpolationAndRenderingSetupBase::Spline: return m_spline.getInterpolation(currentTimeSinceEpoc, setup);
case CInterpolationAndRenderingSetupBase::Linear: return m_linear.getInterpolation(currentTimeSinceEpoc, setup, aircraftNumber);
case CInterpolationAndRenderingSetupBase::Spline: return m_spline.getInterpolation(currentTimeSinceEpoc, setup, aircraftNumber);
default: break;
}

2
src/blackmisc/simulation/interpolatormulti.h
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@@ -29,7 +29,7 @@ namespace BlackMisc
CInterpolationLogger *logger = nullptr);
//! \copydoc CInterpolator::getInterpolation
CInterpolationResult getInterpolation(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup);
CInterpolationResult getInterpolation(qint64 currentTimeSinceEpoc, const CInterpolationAndRenderingSetupPerCallsign &setup, int aircraftNumber);
//! \copydoc CInterpolator::getLastInterpolatedSituation
const Aviation::CAircraftSituation &getLastInterpolatedSituation(CInterpolationAndRenderingSetupBase::InterpolatorMode mode) const;

4
src/blackmisc/simulation/interpolatorspline.cpp
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@@ -103,7 +103,7 @@ namespace BlackMisc
// m_s[0] .. oldest -> m_[2] .. latest
// general idea, we interpolate from current situation -> latest situation
if (m_lastInterpolation.isNull())
if (m_lastSituation.isNull())
{
if (!m_currentSituations.isEmpty())
{
@@ -117,7 +117,7 @@ namespace BlackMisc
}
else
{
m_s[0] = m_s[1] = m_s[2] = m_lastInterpolation; // current
m_s[0] = m_s[1] = m_s[2] = m_lastSituation; // current
m_s[0].addMsecs(-CFsdSetup::c_positionTimeOffsetMsec); // oldest
m_s[2].addMsecs(CFsdSetup::c_positionTimeOffsetMsec); // latest
if (m_currentSituations.isEmpty()) { return true; }